JonathanM

Attach the diagnostics zip file to your next post in this thread.

Pull the board back out of the case and see if it fires up sitting on the anti-static bag that it came in. Don't connect anything except the PSU leads. Briefly connect the power on pins on the motherboard and see if it gives the "no memory" code, typically just long beeps. Turn the PSU back off, add the RAM. Power up the PSU, do the pin connect thing, and see if you get a single POST beep.

All user changes should be stored in the config folder.

Is the VM set to blank the monitor or sleep?

Is the appdata for the containers still on the same pool / folder / location as it was? The previous apps should point the containers to use the same appdata, but if the appdata isn't there, it will show as new.

Maybe UFS Explorer could find something.

In general, exactly the same way you would set up a bare hardware machine. Teamviewer, nomachine with forwarded ports, dwservice, etc, etc.

If by that you mean ensuring XMP is off for greater stablility, then good. It's generally not a good idea to enable XMP on a server, the minimal performance difference isn't worth the risk of crashes.

Try disabling cache_dirs

exactly. Don't use a different USB unless you have no other options.

Plex pass? https://support.plex.tv/articles/115002178853-using-hardware-accelerated-streaming/

I haven't tried it, but a quick google gave me this. https://blog.urbackup.org/368/linux-image-backups-with-urbackup-2-5-y This method should work with local storage. https://urbackup.atlassian.net/wiki/spaces/US/pages/2981890/How+to+restore+via+command+line

That will completely remove ANY chance of keeping data. Don't preclear or format if you need the data on those drives.

Copy the backed up config folder to the freshly prepared USB.

Hindsight 20/20, it probably would have been much easier to reconfigure the new router to match the old settings instead of reconfiguring the rest of your network.

A sincere thanks from me for walking straight over the bleeding edge and spilling your guts so we don't have to. I am VERY grateful to you for taking the hit on my (and a bunch of others) behalf. Thank you! Thank you! Thank you!

Not user configurable, no.

Normally you would set the shares in question to export : yes (hidden) and security private. Only user names listed would be able to access them, and they would not show up as a browseable share, you would have to explicitly type the share name to connect. Is there some reason that's not working for you?

You are going to need to see the local console. Hook up a monitor and see if the board is even completing POST. Are you sure you didn't omit a power cable or some other critical connection to the motherboard? Are you sure you removed all unused mounting studs? Shorting out traces on the bottom of the board can have strange effects.

The Dynamix File Manager plugin should help.

Reading them, compare them to logs from other Unraid systems, google things that aren't clear, mainly just spend time looking at them. After a while your brain will notice patterns, and something that's out of the ordinary will stick out. Could be relevant, may not be, google and see if it appears elsewhere, and what it indicates. I don't know of a shortcut to learning how to read diagnostics, you just have to immerse yourself, and after a while you start to feel like you can see the girl in the red dress in the lines of code.

I haven't investigated, but I suspect some of the issues with the USB creator tool is that some USB sticks have the raw drive formatted, vs having a single partition. Creating said single partition manually could be a workaround.

You are right, I missed that. Very strange symptoms. Either the description is off, or the equipment (UPS or PSU) is failing in some way.

Yep, I looked up your specific model, and all outlets should stay live. Are you pulling the supply plug of the UPS, or switching off the outlet power? Reason I ask, is some battery backups don't behave well if they lose their earth connection. Try testing the UPS functionality alone, plug a medium load like a small heater or a powerful incandescent light, or something that draws about 200 watts or so, and turn off the power to the UPS and see if the load stays running. Bonus points if you have the server on a separate outlet that stays live with the USB signalling cable in place, that way you can see if the server starts an orderly shutdown when the UPS loses power. My bet is that the battery in the UPS is completely dead, regardless of what the UPS thinks the status is.